Improvement in churns



G. W. KNAPP.

crumm- Patented Feb. 13; 1877.

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UNITED STATES ATENT FFICE.

GEORGE W. KNAPP, 0F ARBUOKLE, WEST VIRGINIA.

IMPROVEMENTIN CHURNS.

Specification forming part of Letters Patent No. 1 87,285, datedFebruary 13, 1877 application filed September 30, 1876.

To all whom it may concern:

Be it known that I, GEORGE W. KNAPP, of Arbuckle, in the county of Masonand State of West Virginia, have invented a new and Improved Churn, ofwhich the following is a specification In the accompanying drawing,Figure 1 is a side elevation, with a portion cut away to show theinternal construction. Fig. 2 is a vertical section on line X X inFig. 1. Fig. 3 is a horizontal section on line Y Y in Fig. 1; and Fig. 4is a detail view of the dasher of my improved churn.

Similar letters of reference indicate corresponding parts.

The invention will first be described in connection with the drawing,and then pointed out in the claim.

In the drawing, A is the main frame of the driving mechanism, which isprovided with a crosspiece at the bottom, upon which the churn B rests.The cover U of the churn has formed upon two of its sides slotted earsfor receiving swing-bolts D, that are hinged in the cross-piecesupporting the churn. E E are semicircular dashers provided with holesthat are bored diagonally from each side to the center in such a waythat they direct the cream passing through the holes toward the centerof the churn. Dasherrods F are fixed to the dashers E, and connected tocranks diametrically arranged on the shaft H by connecting-rods G. I isa spur-pinion tixed on the shaft H, and taking its motion from the wheelJ, which is turned by hand or any convenient power. K is a fly-wheel onthe shaft H. L L are grooved friction-rollers, between which thedasher-rods F are guided. These rollers, at one side of the dasher-rod,are supported by a hinged frame, M, by which they may be thrown back outof the way when the dashers are to be removed from the churn.

When the frame M is closed down on the cross-piece that supports it, acatch, N, is caused by the spring 0 to engage with a pin in thecross-piece. F

The dashers are removed from the churn by taking out the pins thatconnect the rods G to the rods F, and loosening the swing-bolt D andthrowing back the rollers L and frames M, and removing the dashers andcover together by taking the dasher-rods through slits in the side ofthe cross-bars of the frame, cream is introduced and the parts replaced.Motion is given to the wheel J, when the dashers are alternately movedup and down.

The peculiar formation of the holes in the dashers throws the creamtogether toward the center of the churn as the dashers move up or down.The rollers L L relieve the friction of the rods F, and the cranks,being oppositely arranged, permit the parts to balance themselves.

Having thus described my invention, I claim as new and desire to secureby Letters Patent The combination ot'the rod F, hinged frames M, rollersL, catch N, spring 0, and cross-bar of the frame A, substantially asherein set forth.

GEORGE WILLIAM KNAPP.

Witnesses:

EDWARD H. S. WHITEHEAD, DARIUS BEARD.

